Home / 881,008.48-1,215,688.60-518,352.64

Finding the Fourth Proportional to 881,008.48, 1,215,688.60 and 518,352.64

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Solution

The fourth proportional to 881,008.48, 1,215,688.60 and 518,352.64 is: 715,265.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,008.48 : 1,215,688.60 = 518,352.64 : x
  2. Step 2: Convert to fraction form
    881,008.48/1,215,688.60 = 518,352.64/x
  3. Step 3: Cross multiply
    881,008.48x = 1,215,688.60 × 518,352.64
  4. Step 4: Simplify right side
    881,008.48x = 630,155,395,227.90
  5. Step 5: Solve for x
    x = 630,155,395,227.90/881,008.48
  6. Step 6: Final answer
    x = 715,265.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.